CN118107327A - Suspension device and vehicle - Google Patents

Abstract

The invention discloses a suspension device and a vehicle, the suspension device includes: suspension support body and first damping subassembly. The suspension frame body includes the guide arm that extends along first direction, and the guide arm is suitable for linking to each other with the automobile body, and first damping subassembly is connected with the guide arm, and first damping subassembly is suitable for linking to each other with the axle, and wherein first damping subassembly includes: the vibration reduction support is connected with the guide arm, two installation parts are arranged at intervals along the first direction, and the axle is arranged between the two installation parts in a penetrating mode and is connected with the two installation parts through the elastic vibration reduction structure. According to the suspension device provided by the embodiment of the invention, the first vibration reduction assembly is connected with the axle and the first vibration reduction assembly is connected with the vehicle body through the guide arm, so that vibration and noise transmitted to the vehicle body by the axle can be attenuated, impact force applied to the vehicle frame during running of the vehicle can be relieved, and the running stability, comfort and safety of the vehicle are improved.

Description

Suspension device and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a suspension device and a vehicle.

Background

Along with the development of automobile equipment technology, in order to meet the demands of stability, comfort and safety of people and vehicles, automobiles can be provided with suspension devices to buffer impact force transmitted to a frame by an axle when the vehicles run on uneven roads, and vibration of the vehicle body in the running process can be attenuated, so that stable running of the vehicles is ensured.

In the related art, a vibration damping component (such as an air spring and a shock absorber) of a suspension device is connected with a frame, so that although the impact force transmitted to the frame by an axle can be reduced to a certain extent and the vibration of a vehicle body in the driving process can be damped, the effect is poor, and higher requirements on the stability, the comfort and the safety of the vehicle still cannot be met.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a suspension device, in which the first vibration damping assembly is connected to the axle and the first vibration damping assembly is connected to the vehicle body through the guide arm, so that vibration and noise transmitted from the axle to the vehicle body can be attenuated, and impact force applied to the frame during driving of the vehicle can be reduced, thereby increasing stability, comfort and safety of driving of the vehicle.

The invention also provides a vehicle with the suspension device.

The suspension device according to the embodiment of the first aspect of the present invention includes: a suspension body including a guide arm extending in a first direction, the guide arm being adapted to be coupled to a vehicle body; the first vibration reduction assembly is connected with the guide arm and is suitable for being connected with an axle; wherein the first vibration reduction assembly comprises: the vibration reduction support is connected with the guide arm, the vibration reduction support is provided with two installation parts which are arranged along the first direction at intervals, and the axle is arranged between the two installation parts in a penetrating mode and is connected with the two installation parts through the elastic vibration reduction structure.

According to the suspension device provided by the embodiment of the invention, the first vibration reduction assembly is connected with the axle and the first vibration reduction assembly is connected with the vehicle body through the guide arm, so that vibration and noise transmitted to the vehicle body by the axle can be attenuated, impact force applied to the vehicle frame during running of the vehicle can be relieved, and the running stability, comfort and safety of the vehicle are improved.

According to some embodiments of the invention, each of the mounting portions is provided with a receiving hole extending in the first direction, the elastic vibration damping structure is penetrated through the receiving hole, and an outer peripheral wall of the elastic vibration damping structure is abutted or connected with an inner peripheral wall of the receiving hole.

According to some embodiments of the present invention, the elastic vibration damping structure is connected to the axle through a connection frame, the elastic vibration damping structure is formed into a ring shape, the elastic vibration damping structure is provided with a mounting hole extending along the first direction, the connection frame is penetrated through the mounting hole, and an outer peripheral wall of the connection frame is abutted or connected with an inner peripheral wall of the mounting hole.

According to some embodiments of the invention, the connecting skeleton comprises a connecting piece, the connecting piece comprises a connecting shaft and a connecting plate, the connecting shaft penetrates through the mounting hole, the connecting plate is connected to one end of the connecting shaft, the axle is suitable for being connected with the connecting plate, the elastic vibration damping structure is provided with a first axial end face and a second axial end face which are oppositely arranged along the first direction, the first axial end face faces the axle, and the connecting plate is opposite to or propped against the first axial end face of the elastic vibration damping structure.

According to some embodiments of the invention, the first axial end face is formed with a first mating protrusion, which is in contact with the connection plate.

According to some embodiments of the invention, the first mating protrusion has a protrusion height in the range of 4-6mm.

According to some embodiments of the invention, the connecting skeleton further comprises a thrust pad connected to the other end of the connecting shaft, the thrust pad being opposite to or abutting against the second axial end face of the elastic vibration damping structure, the second axial end face being formed with a second fitting protrusion having elasticity, the second fitting protrusion being in contact with the thrust pad; the thrust pad is provided with a through hole so that an external first fastener penetrates through the thrust pad and is connected with the connecting shaft.

According to some embodiments of the invention, the thrust pad has a thickness greater than 8mm.

According to some embodiments of the invention, the diameter of the connecting shaft is not less than 40mm.

According to some embodiments of the invention, the chamfer at the junction of the connection plate and the connection shaft is greater than C10.

According to some embodiments of the invention, the elastic vibration damping structure comprises: the bushing is a polymer elastomer, the bushing is provided with the mounting hole, two end faces of the bushing, which are opposite along the first direction, are the first axial end face and the second axial end face respectively, and the radial thickness of the bushing is not less than 22.5mm.

According to some embodiments of the invention, the elastic vibration damping structure comprises a bushing and a first skeleton ring, wherein the first skeleton ring is sleeved on the bushing; and/or, the elastic vibration reduction structure comprises a bushing and a second framework ring, wherein the bushing is sleeved on the second framework ring, and the second framework ring is internally limited with the mounting hole.

According to some embodiments of the invention, the outer peripheral wall of the elastic vibration damping structure is formed with a limit groove, and at least part of the mounting part is accommodated in the limit groove.

According to some embodiments of the invention, the elastic vibration damping structure comprises a bushing and a first skeleton ring, the first skeleton ring is sleeved on the bushing, first limit protrusions are respectively formed on two end faces of the bushing in the axial direction of the bushing, second limit protrusions are respectively formed on two end faces of the first skeleton ring in the axial direction of the bushing, the two second limit protrusions respectively abut against the two first limit protrusions in the axial direction of the bushing, and the limit grooves are defined between the two second limit protrusions.

According to some embodiments of the invention, each of the elastic vibration reduction structures comprises a first and a second bullet-shaped vibration reduction structure arranged along the first direction, the first and second bullet-shaped vibration reduction structures being individually shaped.

According to some embodiments of the invention, the connecting skeleton is a metal piece, and the connecting skeleton is adapted to be fixedly connected to the axle.

According to some embodiments of the invention, the suspension device further comprises: and the middle base plate is arranged between the guide arm and the vibration reduction support.

According to some alternative embodiments of the invention, the suspension device further comprises: the second vibration reduction assembly is arranged on the suspension frame body and is suitable for being connected with the frame.

According to some embodiments of the invention, the suspension frame body includes: the two guide arms are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, two guide arms are respectively connected to opposite ends of the connecting cross beam along the second direction, two first vibration reduction assemblies and two second vibration reduction assemblies are arranged at intervals along the second direction, opposite ends of the axle along the second direction are respectively connected with the two second vibration reduction assemblies, and each guide arm is provided with the first vibration reduction assemblies and the second vibration reduction assemblies which are distributed along the first direction; the reinforcing beam and the connecting cross beam are distributed along the first direction, and two opposite ends of the reinforcing beam along the second direction are respectively connected with two guide arms.

According to some embodiments of the invention, the first vibration damping assembly comprises an air spring and a vibration damper, the reinforcing beam is located on one side of the guide arm along a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, a vibration damper support is arranged on the reinforcing beam, at least part of the vibration damper support is located between the reinforcing beam and the guide arm, the vibration damper is fixedly connected to the vibration damper support, and a second fastener penetrates through the reinforcing beam, the vibration damper support and the second vibration damping assembly along the third direction.

According to an embodiment of the second aspect of the present invention, a vehicle includes: the suspension device according to the embodiment of the first aspect of the present invention described above.

According to the vehicle provided by the embodiment of the invention, through the arrangement of the suspension device, the first vibration reduction assembly is connected with the vehicle axle and the first vibration reduction assembly is connected with the vehicle body through the guide arm, so that vibration and noise transmitted to the vehicle body by the vehicle axle can be attenuated, impact force applied to the vehicle frame during running of the vehicle can be relieved, and the running stability, comfort and safety of the vehicle are improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of a suspension apparatus according to some embodiments of the present invention;

FIG. 2 is a top view of the suspension assembly of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

Fig. 4 is an enlarged view at B in fig. 3;

FIG. 5 is a perspective view of the first bullet-shaped vibration reduction structure of FIG. 4;

FIG. 6 is a cross-sectional view of the first bullet-shaped vibration reduction structure of FIG. 5;

fig. 7 is a schematic view of an assembly of an axle with the suspension arrangement of fig. 1.

Reference numerals:

100. A suspension device;

10. A suspension frame body; 1. a guide arm; 11. a guide arm support; 2. a connecting beam; 3. a stiffening beam;

20. A first vibration damping assembly; 4. a vibration reduction support; 41. a mounting part; 5. an elastic vibration damping structure; 51. a first bullet-shaped vibration damping structure; 511. a first sub-bushing; 512. a first sub-backbone ring; 513. a second sub-backbone ring; 514. a first axial end face; 5115. the first limit groove; 52. a second bullet-shaped vibration damping structure; 521. a second sub-bushing; 522. a third sub-backbone ring; 523. a fourth sub-backbone ring; 524. a second axial end surface; 5125. the second limit groove; 53. a first backbone ring; 531. the second limiting bulge; 54. a second backbone ring; 55. a bushing; 551. the first limiting protrusion; 56. a first mating protrusion; 57. a mounting hole; 58. a limit groove; 59. a second mating protrusion; 6. connecting a framework; 61. a connecting piece; 611. a connecting plate; 612. a connecting shaft; 613. a thrust pad; 614. a first fastener;

30. a second vibration damping assembly; 7. an air spring; 71. a gas storage structure; 8. a damper; 81. a shock absorber support;

40. An intermediate backing plate;

50. a second fastener;

60. A thrust rod; 9. a thrust rod support;

200. an axle.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

A suspension device 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 7.

As shown in fig. 1 to 3, a suspension apparatus 100 according to an embodiment of the first aspect of the present invention includes a suspension tower 10, and a first vibration damping assembly 20.

The suspension body includes a guide arm 1 extending in a first direction (for example, refer to the e1 direction in the drawing), and the guide arm 1 is adapted to be connected to the body. The guide arm 1 can attenuate the vibration transmitted from the suspension body 10 to the vehicle body. The guide arm 1 may be provided with a guide arm support 11, the guide arm support 11 being located at one end of the guide arm 1 in the first direction, and the guide arm 1 may be connected to the vehicle body through the guide arm support 11. For example, the guide arm 1 may have a long strip shape. From one end of the guide arm support 11 along the first direction to the other end of the guide arm, the thickness of the guide arm 1 is gradually increased, and the overall strength of the guide arm 1 can be improved while the elasticity of the guide arm 1 is ensured.

First vibration damping assembly 20 is coupled to guide arm 1, and first vibration damping assembly 20 is adapted to be coupled to axle 200. The axle 200 is connected to the wheels, and when the vehicle is running, vibrations of the wheels are transmitted to the axle 200, and the axle 200 in turn transmits vibrations to the suspension frame body 10. The first vibration damping assembly 20 is suitable for being connected with the axle 200, and the first vibration damping assembly 20 is connected with the guide arm 1 of the suspension frame body 10, so that vibration transmitted to the suspension frame body 10 by the axle 200 can be damped, noise transmitted to the suspension frame body 10 by the axle 200 can be reduced, vibration and noise transmitted to a vehicle body are small, and overall stability is improved.

Wherein the first vibration reduction assembly comprises: the vibration damping support 4 and the elastic vibration damping structure 5, vibration damping support 4 links to each other with guide arm 1, and vibration damping support 4 is equipped with two installation department 41 that set up along first direction interval, and axle 200 wears to locate between two installation department 41 and is connected with two installation department 41 respectively through elastic vibration damping structure 5. The axle 200 is arranged between the two mounting parts 41 of the first vibration reduction assembly 20 in a penetrating manner and is respectively connected with the two mounting parts 41 through the elastic vibration reduction structure 5, so that the axle 200 is conveniently connected with the second vibration reduction assembly 20, and the stability of the whole structure can be improved. The axle 200 is disposed between the two mounting portions 41, so that the overall structure is more compact and space is saved.

The elastic vibration damping structure 5 is provided to the mounting portion 41 of the vibration damping bracket 4 and the elastic vibration damping structure 5 is adapted to be connected to the axle 200. The vibration damping mount 4 may act as a support and a fixation for the elastic vibration damping structure. The elastic vibration reduction structure 5 is connected with the axle 200 to reduce vibration and noise transmitted to the suspension frame body 10 by the axle 200, so that the vibration and noise of the frame are smaller, and the running stability of the vehicle is improved. The mounting portion 41 may protect and limit the elastic damping structure 5.

When the vehicle runs at a high speed or runs on an uneven road, the wheels generate vibration, and the wheels are connected with the axle 200, so that the vibration of the wheels can be transmitted to the axle 200, the vibration transmitted to the axle 200 is attenuated by the first vibration attenuation assembly 20, and the attenuated vibration is transmitted to the vehicle body through the suspension frame body 10, so that the vibration received by the vehicle body is smaller, and the overall stability and comfort of the vehicle are improved. Secondly, the vibration of the wheels can cause the vehicle to receive impact forces in different directions, and the first vibration damping assembly 20 can alleviate the impact force transmitted by the axle 200 to the suspension frame body 10, so that the running safety of the vehicle is ensured. In addition, since noise is generated in the axle 200 when the vehicle is running, the first vibration damping assembly 20 is connected with the axle 200, so that noise transmitted to the vehicle body by the axle 200 can be damped, and the noise reduction effect is achieved.

According to the suspension device 100 of the embodiment of the invention, the first vibration reduction assembly 20 is connected with the axle 200, and the first vibration reduction assembly 20 is connected with the vehicle body through the guide arm 1, so that vibration and noise transmitted to the vehicle body by the axle 200 can be reduced, impact force applied to the vehicle frame during running of the vehicle can be reduced, and the running stability, comfort and safety of the vehicle are improved.

According to some embodiments of the present invention, referring to fig. 3 to 6, each of the mounting portions 41 is provided with a receiving hole extending in the first direction, the elastic vibration reduction structure 5 is penetrated through the receiving hole, and an outer circumferential wall of the elastic vibration reduction structure 5 is abutted or connected with an inner circumferential wall of the receiving hole. The inner peripheral wall of holding hole and the outer peripheral wall butt or the connection of elasticity damping structure 5 can make the holding hole play spacing and fixed action to elasticity damping structure 5, can avoid the change of elasticity damping structure 5 position in suspension device 100 use to guarantee elasticity damping structure 5 and the connection of axle 200, improve the damping and the noise reduction effect of overall structure to the frame.

According to some embodiments of the present invention, referring to fig. 3 to 4, the elastic vibration reduction structure 5 is connected to the axle 200 through the connection frame 6, the elastic vibration reduction structure 5 is formed in a ring shape, the elastic vibration reduction structure 5 is provided with the mounting hole 57 extending in the first direction, the connection frame 6 is penetrated through the mounting hole 57, and the outer circumferential wall of the connection frame 6 is abutted or connected with the inner circumferential wall of the mounting hole 57.

The inner peripheral wall of the mounting hole 57 of the elastic vibration reduction structure 5 is abutted or connected with the outer peripheral wall of the connecting skeleton 6, and the outer peripheral wall of the elastic vibration reduction structure 51 is abutted or connected with the inner peripheral wall of the accommodating hole of the mounting portion 41, so that the mounting portion 41 is matched with the connecting skeleton 6, the common limit of the elastic vibration reduction structure 5 is realized, the change of the position of the elastic vibration reduction structure 5 can be avoided in the using process of the suspension device 100, the connection of the elastic vibration reduction structure 5 and the axle 200 is ensured, and the vibration reduction and noise reduction effects of the whole structure on the vehicle body are improved. Meanwhile, the whole structure is more compact, and the space is saved.

The elastic vibration reduction structure 5 is annular, so that the elastic vibration reduction structure 5 can be matched with the mounting part 41 and the connecting framework 6 more easily, the contact area of the elastic vibration reduction structure 5 and the connecting framework is larger, and the vibration reduction and noise reduction effects of the whole structure on the frame are facilitated.

The connecting frame 6 is connected between the elastic damping structure 5 and the axle 200. The connection skeleton 6 can be convenient for the connection of axle 200 and elasticity damping structure 5, can improve overall structure's structural strength, strengthens the supporting force of axle 200 overall structure, and connection skeleton 6 can play support and locate action to elasticity damping structure 5 simultaneously.

According to some embodiments of the present invention, referring to fig. 3-6, the connection skeleton 6 includes a connection member 61, the connection member 61 includes a connection shaft 612 and a connection plate 611, the connection shaft 612 is disposed through the mounting hole 57, the connection shaft 612 may be disposed through the mounting hole 57, and the connection shaft 612 may abut against or connect with the elastic vibration reduction structure 5, so as to fix the elastic vibration reduction structure 5. The connecting plate 611 is connected to one end of the connecting shaft 612, and the axle 200 is suitable for being connected with the connecting plate 611, and the connecting plate 611 is connected with the axle 200, so that the connecting area of the connecting skeleton 6 and the axle 200 is larger, and the structure is more stable.

The elastic vibration damping structure 5 has a first axial end surface 514 and a second axial end surface 524 which are oppositely arranged along the first direction, wherein the first axial end surface 514 faces the axle 200, and the connecting plate 611 is opposite to or props against the first axial end surface 514 of the elastic vibration damping structure 5, so that the elastic vibration damping structure 5 can directly attenuate vibration and noise transmitted to the suspension frame body 10 by the axle 200, and meanwhile, the stability of the whole structure can be improved, so that the vehicle is more stable in the running process.

The design of the connecting piece 61 can facilitate the connection of the axle 200 with the elastic damping structure 5, while improving the structural strength of the overall structure.

For example, the connecting piece 61 can be an integral piece, so that the number of parts is small, and the processing is convenient. The connection shaft 612 may be disposed perpendicular to the connection plate 611 in the first direction.

According to some embodiments of the present invention, referring to fig. 3-6, at least a portion of the elastic damping structure 5 is a polymer elastomer, which has high elasticity and a buffering damping effect, and can reduce vibration and noise transmitted from the axle 200 to the suspension frame body 10, thereby improving the smoothness of the running of the vehicle. For example, the polymer elastomer may be rubber.

According to some embodiments of the present invention, referring to fig. 3 to 5, the first axial end surface 514 is formed with a first fitting protrusion 56 having elasticity, and the first fitting protrusion 56 is in contact with the connection plate 611. The first matching protrusions 56 can be circumferentially and uniformly distributed on the first axial end surface 514 at intervals, the first matching protrusions 56 are in contact with the connecting plate 611, so that the contact area between the first axial end surface 514 of the elastic vibration reduction structure 5 and the connecting plate 611 is smaller, and when the axle 200 vibrates, the first matching protrusions 56 can avoid the problem that the temperature of the elastic vibration reduction structure 5 is too high due to large-area friction between the first axial end surface 514 and the connecting plate 611, so that the service life of the elastic vibration reduction structure 5 can be prolonged. Meanwhile, the first fitting protrusion 56 is in contact with the connection plate 611, so that the stability of the overall structure can be improved.

According to some embodiments of the present invention, referring to fig. 3 to 5, the height of the first mating protrusion 56 ranges from 4mm to 6mm, so that large-area friction between the first axial end surface 514 and the connecting plate 611 during the vibration process of the axle 200 can be avoided, and meanwhile, the vibration and noise transmitted to the suspension frame body 10 by the axle 200 can be directly attenuated by the elastic vibration attenuation structure 5, so that the vibration attenuation and noise reduction effects of the overall structure on the vehicle body can be improved. For example, the first mating protrusion 56 may have a protrusion height of 4mm, 5mm, 6mm, or the like.

According to some embodiments of the present invention, referring to fig. 3-4, the connection frame 6 further includes a thrust pad 613, the thrust pad 613 being connected to the other end of the connection shaft 612, the thrust pad 613 being opposite or abutting the second axial end surface 524 of the corresponding elastic vibration reduction structure 5. The thrust pad 613 and the connecting plate 611 are opposite to or propped against the second axial end surface 524 and the first axial end surface 514 of the elastic vibration reduction structure 5 respectively in the first direction, the thrust pad 613 is matched with the connecting plate 611, the common limit of the elastic vibration reduction structure 5 in the first direction is realized, the change of the position of the elastic vibration reduction structure 5 in the using process of the suspension device 100 is avoided, the connection of the elastic vibration reduction structure 5 and the axle 200 is ensured, and therefore the vibration reduction and noise reduction effects of the whole structure on the vehicle body are improved.

The second axial end surface 524 is formed with a second fitting projection 59 having elasticity, and the second fitting projection 59 is in contact with the thrust pad 613. The second matching protrusions 59 can be circumferentially and uniformly distributed at intervals on the second axial end surface 524, the second matching protrusions 59 are in contact with the thrust pad 613, the contact area between the second axial end surface 524 of the elastic vibration reduction structure 5 and the thrust pad 613 can be reduced, and the situation that the temperature of the elastic vibration reduction structure 5 is too high due to large-area friction between the second axial end surface 524 and the thrust pad 613 caused by abnormal stress of the thrust pad 613 is avoided, so that the service life of the elastic vibration reduction structure 5 can be prolonged.

For example, the height of the second mating protrusion 59 may be 4-6mm, so that the second axial end surface 524 and the thrust pad 613 may be prevented from rubbing with a large area due to abnormal stress of the thrust pad 613, and the thrust pad 613 may be more stable in limiting the elastic vibration reduction structure 5, so that the structure is more compact. For example, the protrusion height of the second fitting protrusion 59 may be 4mm, 5mm, 6mm, or the like.

Wherein the thrust pad 613 is provided with a through hole so that an external first fastener 614 is inserted through the thrust pad 613 to be connected with the connection shaft 612. The first fastener 614 is adapted to be disposed through the thrust pad 613 to limit movement of the thrust pad 613 in a third direction (e.g., see direction e3 in the drawing) and a second direction (e.g., see direction e2 in the drawing), the first direction being perpendicular to the second direction, the second direction being perpendicular to the third direction, and the third direction being perpendicular to the first direction. The first fastener 614 is connected to the connection shaft 612 such that the thrust pad 613 abuts an end of the connection shaft 612, and the first fastener 614 and the connection shaft 612 cooperate to limit movement of the thrust pad 613 in the first direction.

For example, one end of the connecting shaft 612, which is close to the thrust pad 613, may be of a hollow structure, and an internal thread is provided in the connecting shaft 612, so that the connecting shaft can be in threaded connection with the first fastener 614, and the connecting shaft is simple in structure and convenient for the installation and disassembly of the integral structure.

According to some embodiments of the present invention, referring to fig. 3-4, the thickness of the thrust pad 613 is greater than 8mm, so that deformation of the thrust pad 613 caused by stress during the fastening process of the first fastener 614 can be avoided, thereby ensuring a limiting effect of the thrust pad 613 on the elastic vibration reduction structure 5.

According to some embodiments of the present invention, referring to fig. 3 to 4, the diameter of the connection shaft 612 is not less than 40mm, so that the structural strength of the connection shaft 612 can be increased, and the breakage of the connection shaft 612 due to the force generated by the vibration of the axle 200 can be prevented, thereby ensuring the normal use of the suspension device 100.

According to some embodiments of the present invention, referring to fig. 3 to 4, the chamfer angle at the connection point of the connection plate 611 and the connection shaft 612 is greater than C10, so that when the connection member is subjected to the force transmitted by the axle 200, breakage of the connection point of the connection plate 611 and the connection shaft 612 due to concentrated force is avoided, thereby ensuring normal use of the suspension device 100.

According to some embodiments of the present invention, referring to fig. 3-4, the elastic vibration damping structure 5 includes: the bush 55 is made of a polymer elastomer, the bush 55 has a mounting hole 57 on the inner peripheral side thereof, and the opposite end surfaces of the bush 55 in the first direction are a first axial end surface 514 and a second axial end surface 524, respectively.

The polymer elastomer has high elasticity and buffering vibration damping effect, and the bushing 55 is the polymer elastomer, so that the vibration damping and noise reducing effects of the integral structure on the vehicle body can be improved. The inner peripheral side of the bushing 55 has a mounting hole 57 to facilitate the engagement of the elastic vibration reduction structure 5 with the connection frame 6. The bushing 55 may be abutted or connected with the connecting plate 611 through the first axial end surface 514 to directly attenuate vibration and noise transmitted to the suspension frame body 10 by the axle 200, and may be abutted or connected with the thrust pad 613 through the second axial end surface 524 to realize a limiting effect on the elastic vibration damping structure 5 in the first direction. For example, the polymer elastomer may be rubber.

The radial thickness of the bushing 55 is not less than 22.5mm, so that the vibration and noise reduction effect of the whole structure on the frame is better, and the running stability and comfort of the vehicle are improved.

According to some embodiments of the present invention, referring to fig. 3-4, the elastic vibration damping structure 5 includes a bushing 55 and a first skeletal ring 53, the first skeletal ring 53 being sleeved on the bushing 55. For example, the first skeletal ring 53 may be a metal piece. The bushing 55 is located to first skeleton ring 53 cover, and the axial cross-sectional shape of first skeleton ring 53 can be the same with bushing 55 peripheral wall axial cross-sectional shape to first skeleton ring 53 and bushing 55 cooperation are inseparabler, can prevent the change of elasticity damping structure 5 position simultaneously in the vibration process of axle 200.

According to some embodiments of the present invention, referring to fig. 3-4, the elastic vibration reduction structure 5 includes a bushing 55 and a second skeletal ring 54, the bushing 55 is sleeved on the second skeletal ring 54, and a mounting hole 57 is defined in the second skeletal ring 54. For example, the second skeletal ring 54 may be a metal piece. The second armature ring 54 defines mounting holes 57 that facilitate engagement of the elastomeric vibration reduction structure 5 with the attachment armature 6.

According to some embodiments of the present invention, referring to fig. 3-4, the elastic vibration reduction structure 5 includes a bushing 55, a first skeletal ring 53, and a second skeletal ring 54, e.g., each of the first skeletal ring 53 and the second skeletal ring 54 may be a metal piece. The bushing 55 is disposed between the first skeletal ring 53 and the second skeletal ring 54, which can enhance the overall structural strength of the elastic vibration damping structure 5.

According to some embodiments of the present invention, referring to fig. 3-4, the outer peripheral wall of the elastic vibration damping structure 5 is formed with a limiting groove 58, and at least a portion of the mounting portion 41 is received in the corresponding limiting groove 58, for example, the mounting portion 41 is partially received in the corresponding limiting groove 58 or the mounting portion 41 is entirely received in the corresponding limiting groove 58. The limit groove 58 has an anti-drop effect on the elastic damping structure 5. The limiting groove 58 can limit and position the elastic vibration reduction structure 5, and prevent the position of the elastic vibration reduction structure 5 from changing during the vibration process of the axle 200.

According to some embodiments of the present invention, referring to fig. 3-4, the elastic vibration reduction structure 5 includes a bushing 55 and a first skeletal ring 53, and the first skeletal ring 53 is sleeved on the bushing 55, so that the position of the elastic vibration reduction structure 5 can be prevented from being changed during vibration of the axle 200.

The two end surfaces of the bushing 55 in the axial direction of the bushing 55 are respectively formed with first limit protrusions 551, the two end surfaces of the first skeleton ring 53 in the axial direction of the bushing 55 are respectively formed with second limit protrusions 531, and the two second limit protrusions 531 respectively abut against the two first limit protrusions 551 in the axial direction of the bushing 55. Because the bushing 55 has the characteristic of high elasticity, the two second limiting protrusions 531 respectively abut against the two first limiting protrusions 551 in the axial direction of the bushing 55, so that the position of the bushing 55 can be prevented from being changed in the vibration process of the axle 200, and meanwhile, the bushing 55 can be prevented from being separated from the elastic vibration reduction structure 5 due to deformation.

The two second limiting protrusions 531 define a limiting groove 58 therebetween. The limiting groove 58 can limit and position the elastic vibration reduction structure 5, and prevent the position of the elastic vibration reduction structure 5 from changing during the vibration process of the axle 200.

According to some embodiments of the present invention, referring to fig. 3-6, each elastic vibration reduction structure 5 includes a first bullet-shaped vibration reduction structure 51 and a second bullet-shaped vibration reduction structure 52 disposed along a first direction, the first bullet-shaped vibration reduction structure 51 and the second bullet-shaped vibration reduction structure 52 being respectively and independently molded. The provision of the first and second bullet-shaped vibration damping structures 51, 52 may facilitate the installation and removal of the elastic vibration damping structure 5.

In some embodiments of the present invention, referring to fig. 3-6, each elastic vibration reduction structure 5 includes a first bullet-shaped vibration reduction structure 51 and a second bullet-shaped vibration reduction structure 52 disposed along a first direction, the first bullet-shaped vibration reduction structure 51 being abutted or connected to the connection plate 611 by a first axial end surface 514, the second bullet-shaped vibration reduction structure 52 being abutted or connected to the thrust pad 613 by a second axial end surface 524. For example, the structure of the second bullet-shaped vibration reduction structure 52 may be the same as the structure of the first bullet-shaped vibration reduction structure 51.

Wherein the first bullet-shaped vibration reduction structure 51 includes a first sub-bushing 511, a first sub-skeletal ring 512, and a second sub-skeletal ring 513. The first sub-bushing 511 includes a first axial end surface 514, the first axial end surface 514 being formed with a first mating protrusion 56, the first mating protrusion 56 being integrally formed with the first sub-bushing 511. The first limiting projection is formed at one end of the first sub-bushing 511 near the first axial end surface 514. The first sub-skeleton ring 512 is close to the one end of first axial terminal surface 514 and is formed with the spacing arch 531 of second, the spacing arch 531 of second offsets with the spacing arch 551 of first sub-skeleton ring 511 in the axial direction, the periphery wall of first sub-skeleton ring 512 is formed with first spacing recess 5115, first sub-skeleton ring 512 cover is located first sub-bush 511, first sub-skeleton ring 513 is located to first sub-bush 511 cover, inject mounting hole 57 in the second sub-skeleton ring 513, first sub-bush 511 is located between first sub-skeleton ring 512 and the second sub-skeleton ring 513, can strengthen the bulk strength of first bullet nature damping structure 51. The second sub-frame ring 513 defines mounting holes 57 that facilitate mating of the first sub-elastic vibration reduction structure 51 with the sub-connector frame 6. For example, the first sub-bushing 511, the first sub-skeleton ring 512, and the second sub-skeleton ring 513 may be integrally formed, resulting in a small number of parts and cost savings.

The second sub-elastic vibration reduction structure 52 includes a second sub-sleeve 521, a third sub-skeletal ring 522, and a fourth sub-skeletal ring 523. The second sub-bushing 521 includes a second axial end surface 524, and the second axial end surface 524 is formed with a second mating protrusion 59, and the second mating protrusion 59 may be integrally formed with the second sub-bushing 521. The second sub-sleeve 521 is formed with a first stop protrusion 551 at one end thereof adjacent to the second axial end surface 514. The end of the third sub-skeleton ring 522, which is close to the second axial end surface 524, is formed with a second limiting protrusion 531, the second limiting protrusion 531 and the first limiting protrusion 551 are abutted against each other in the axial direction of the second sub-skeleton ring 521, the outer peripheral wall of the third sub-skeleton ring 522 is formed with a second limiting groove 5125, the third sub-skeleton ring 522 is sleeved on the second sub-liner 521, the second sub-liner 521 is sleeved on the fourth sub-skeleton ring 523, the fourth sub-skeleton ring 523 is internally provided with a mounting hole 57, and the second sub-liner 521 is arranged between the third sub-skeleton ring 522 and the fourth sub-skeleton ring 523, so that the overall strength of the second sub-elastic vibration damping structure 52 can be enhanced. The fourth sub-frame ring 523 defines a mounting aperture 57 that facilitates the mating of the second sub-elastic vibration reduction structure 52 with the connecting frame 6. For example, the second sub-hub 521, the third sub-skeleton ring 522, and the fourth sub-skeleton ring 523 may be integrally formed, resulting in a reduced number of parts and cost savings.

The radial thickness of the first sub-bushing 511 and the second sub-bushing 521 is not less than 22.5mm, and the vibration and noise reduction effects of the overall structure on the frame can be improved, thereby increasing the smoothness and comfort of the vehicle running.

When the elastic vibration damping structure 5 is mounted on the connecting skeleton 6, the first sub-bushing 511 and the second sub-bushing 521 are abutted together to form the bushing 55. The first limit groove 5115 and the second limit groove 5125 together constitute a limit groove 58. The first sub-skeleton ring 512 abuts against or is connected with the third sub-skeleton ring 522 to form the first skeleton ring 53. The second sub-skeleton ring 513 abuts or is connected to the fourth sub-skeleton ring 523 to collectively constitute the second skeleton ring 54. The first skeleton ring 512 and the second limit protrusions 531 of the third skeleton ring 522 define a limit groove 58 therebetween.

According to some embodiments of the present invention, referring to fig. 1 or 7, the mounting portion 41 is a hollow structure, which can make the whole structure lighter in weight and reduce the cost.

According to some embodiments of the present invention, referring to fig. 3-4, the connecting frame 6 may be a metal piece, and the connecting frame 6 is adapted to be fixedly connected to the axle 200. The connecting framework 6 is a metal piece, so that the integral structure of the connecting framework 6 has high mechanical strength and is not easy to wear and break. The connecting skeleton 6 is suitable for being fixedly connected with the axle 200, so that the connecting skeleton 6 and the axle 200 can be connected more reliably, and the supporting force of the axle 200 on the whole structure is increased. For example, the connecting frame 6 may be welded to the axle 200.

According to some embodiments of the present invention, referring to fig. 3 to 4, the suspension apparatus 100 further includes: and an intermediate pad 40, wherein the intermediate pad 40 is arranged between the guide arm 1 and the vibration reduction support 4. For example, a groove may be formed on a side of the middle pad 40 facing the guide arm 1, and the groove is matched with the guide arm 1, so that the suspension frame body 10 is prevented from rotating relative to the vibration reduction support 4 during the use of the suspension device 100, and the stability of the overall structure is ensured.

According to some alternative embodiments of the present invention, referring to fig. 1 to 3, the suspension apparatus 100 further includes: the second vibration damping assembly 30, the second vibration damping assembly 30 is provided to the suspension frame body 10 and is adapted to be connected to a vehicle frame. The axle 200 is coupled to the wheels, and vibrations of the wheels are transmitted to the axle 200 when the vehicle is traveling, and the axle 200 in turn transmits vibrations to the vehicle frame. The second vibration damping assembly 30 is arranged on the suspension frame body 10 and is suitable for being connected with a frame, so that vibration transmitted to the frame by the suspension frame body 10 can be relieved, and the vehicle is more stable in the running process.

The second vibration damping assembly 30 is matched with the first vibration damping assembly 20, so that multiple damping of vibration between the axle 200 and the vehicle frame can be realized, and impact force applied to the vehicle frame during running of the vehicle can be greatly relieved, so that the running stability, comfort and safety of the vehicle are improved.

According to some alternative embodiments of the present invention, referring to fig. 1 to 3 and 7, a suspension frame body 10 includes: the connecting beam 2 and the stiffening beam 3, the guide arm 1 is two along the interval setting of second direction, and the second direction is perpendicular to first direction, and two guide arms 1 are connected respectively to the opposite ends of connecting beam 2 along the second direction, and connecting beam 2 can increase the holistic stability of suspension 100, improves the roll performance of suspension 100.

The second vibration reduction assemblies 30 and the first vibration reduction assemblies 20 are respectively arranged at left and right intervals, the left and right ends of the axle 200 are respectively connected with the two first vibration reduction assemblies 20, and each guide arm 1 is provided with the second vibration reduction assemblies 30 and the first vibration reduction assemblies 20 which are arranged along the first direction. The left and right ends of the axle 200 are respectively provided with the second vibration reduction assemblies 30 and the first vibration reduction assemblies 20, and the left and right ends of the axle 200 are respectively connected with the two first vibration reduction assemblies 20, so that the vibration reduction and noise reduction effects of the suspension device 100 on the frame and the vehicle frame are better, and the vehicle is more stable and comfortable in the running process.

The stiffening beam 3 and the connecting cross beam 2 are distributed along the first direction, two guide arms 1 are respectively connected to opposite ends of the stiffening beam 3 along the second direction, so that the overall stability of the suspension device 100 can be increased, the lateral force born by the suspension device 100 can be effectively shared by the stiffening beam 3, the roll performance of the suspension device 100 is improved, and the stability and safety of a vehicle in the running process are ensured. The reinforcing beam 3 is located at the bottom of the axle 200, and can protect the bottom of the axle 200 during the running process of the vehicle, so as to prevent the chassis of the axle 200 from being damaged due to collision. For example, the reinforcing beam 3 may be a stamping part, so that the reinforcing beam 3 has higher strength and rigidity and is not easy to deform.

According to some alternative embodiments of the present invention, referring to fig. 1 to 3 and 7, the second vibration damping assembly 30 includes an air spring 7 and a damper 8, the air spring 7 may be connected to an air storage structure 71 through a pipe, and the air storage structure 71 may supply air to the air spring 7. Compared with the common spring, the air spring 7 has the advantages of light weight, long service life, good high-frequency vibration isolation and sound insulation performance, small installation space and convenient replacement, and ensures that the running process of the vehicle is smoother and more comfortable. The shock absorber 8 can attenuate the vibration of the frame and ensure the running stability of the vehicle. For example, the shock absorber 8 may be a single tube shock absorber 8 or a double tube shock absorber 8, as well as other types of shock absorbers 8.

The stiffening beam 3 is located on one side of the guiding arm 1 along a third direction, which is perpendicular to the first direction and perpendicular to the second direction, the stiffening beam 3 is provided with a damper support 81, and at least part of the damper support 81 is located between the stiffening beam 3 and the guiding arm 1, for example part of the damper support 81 is located between the stiffening beam 3 and the guiding arm 1 or all of the damper support 81 is located between the stiffening beam 3 and the guiding arm 1, which can make the structure more compact and save space. The shock absorber 8 is fixedly connected with the shock absorber support 81, a fixed shaft can be arranged on the shock absorber support 81, one end of the shock absorber 8 can be sleeved on the fixed shaft, and the shock absorber 8 can rotate around the fixed shaft. The second fastener 50 is provided to penetrate the reinforcement beam 3, the damper mount 81, and the first damper assembly 20 in the third direction, and for example, the second fastener 50 may be provided to penetrate the mounting portion 41 of the damper mount 4 of the first damper assembly 20 in the third direction. The second fastener 50 can fix the first vibration reduction assembly 20 and the suspension frame body 10, so that the overall stability of the suspension device 100 is improved, and the second fastener 50 has a simple structure and is convenient for the disassembly and the assembly of the first vibration reduction assembly 20. For example, the second fastener 50 may be a bolt.

The suspension device 100 further comprises a thrust rod 60, wherein the thrust rod 60 is arranged on the thrust rod support 9, the thrust rod 60 is arranged above the axle 200 and can be connected with the frame, and the thrust rod support 9 is arranged above the first vibration reduction assembly 20 and is arranged on one side, close to the support of the guide arm 1, of the vibration reduction support 4 along the first direction. One end of the thrust rod 60 is fixed with the base of the thrust rod 60, and the other end is connected with the frame. The thrust rod support 9 can be connected with the vibration reduction support 4 through the second fastening piece 50, so that the installation and the disassembly of the thrust rod support 9 can be facilitated. For example, the second fastening member 50 may be provided to penetrate the reinforcement beam 3, the damper mount 81, the guide arm 1, the intermediate pad 40, the mounting portion 41 of the damper mount 4 of the first damper assembly 20, and the thrust rod mount 9 in the third direction.

Alternatively, the thrust rod 60 may have elasticity, which dampens vibrations transmitted to the frame by the suspension frame body 10. The thrust rod 60 is provided to share the lateral force applied to the suspension device 100, thereby ensuring stability and safety of the vehicle during running.

A vehicle according to an embodiment of a second aspect of the present invention includes the suspension device 100 according to the above-described first aspect of the present invention.

According to the vehicle of the embodiment of the invention, through the suspension device 100, the first vibration damping assembly 20 is connected with the axle 200 and the first vibration damping assembly 20 is connected with the vehicle body through the guide arm 1, so that the vibration and noise transmitted to the vehicle body by the axle 200 can be attenuated, the impact force applied to the vehicle frame during running of the vehicle can be relieved, and the running stability, comfort and safety of the vehicle are improved.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (21)

1. A suspension device characterized by comprising:

A suspension body including a guide arm extending in a first direction, the guide arm being adapted to be coupled to a vehicle body;

The first vibration reduction assembly is connected with the guide arm and is suitable for being connected with an axle;

wherein the first vibration reduction assembly comprises:

The vibration reduction support is connected with the guide arm, the vibration reduction support is provided with two installation parts which are arranged along the first direction at intervals, and the axle is arranged between the two installation parts in a penetrating mode and is connected with the two installation parts through the elastic vibration reduction structure.

2. The suspension device according to claim 1 wherein each of the mounting portions is provided with a receiving hole extending in the first direction, the elastic vibration damping structure is provided to pass through the receiving hole, and an outer peripheral wall of the elastic vibration damping structure is abutted or connected with an inner peripheral wall of the receiving hole.

3. The suspension device according to claim 2, wherein the elastic vibration damping structure is connected to the axle through a connection frame, the elastic vibration damping structure is formed in a ring shape, the elastic vibration damping structure is provided with a mounting hole extending in the first direction, the connection frame is provided through the mounting hole, and an outer peripheral wall of the connection frame is abutted against or connected to an inner peripheral wall of the mounting hole.

4. A suspension device according to claim 3, wherein the connection frame includes a connection member including a connection shaft and a connection plate, the connection shaft being provided through the mounting hole, the connection plate being connected to one end of the connection shaft and the axle being adapted to be connected with the connection plate, the elastic vibration damping structure having a first axial end face and a second axial end face which are disposed opposite to each other in the first direction, wherein the first axial end face faces the axle, the connection plate being opposite to or abutting against the first axial end face of the elastic vibration damping structure.

5. The suspension device according to claim 4 wherein the first axial end face is formed with a first fitting projection, the first fitting projection being in contact with the connection plate.

6. The suspension device according to claim 5 wherein the first mating protrusion has a protrusion height in the range of 4-6mm.

7. The suspension device according to claim 4 wherein the connection frame further includes a thrust pad connected to the other end of the connection shaft, the thrust pad being opposed to or abutting against the second axial end face of the elastic vibration damping structure, the second axial end face being formed with a second fitting projection having elasticity, the second fitting projection being in contact with the thrust pad;

the thrust pad is provided with a through hole so that an external first fastener penetrates through the thrust pad and is connected with the connecting shaft.

8. The suspension device according to claim 7 wherein the thrust pad has a thickness greater than 8mm.

9. The suspension device according to claim 4 wherein the diameter of the connecting shaft is not less than 40mm.

10. The suspension device according to claim 4 wherein the chamfer angle at the junction of the web and the connecting shaft is greater than C10.

11. The suspension device according to claim 4 wherein the elastic vibration damping structure comprises:

the bushing is a polymer elastomer, the bushing is provided with the mounting hole, two end faces of the bushing, which are opposite along the first direction, are the first axial end face and the second axial end face respectively, and the radial thickness of the bushing is not less than 22.5mm.

12. The suspension device according to claim 4 wherein the elastic vibration damping structure comprises a bushing and a first skeletal ring, the first skeletal ring being sleeved on the bushing; and/or, the elastic vibration reduction structure comprises a bushing and a second framework ring, wherein the bushing is sleeved on the second framework ring, and the second framework ring is internally limited with the mounting hole.

13. The suspension device according to claim 4 wherein the outer peripheral wall of the elastic vibration damping structure is formed with a limit groove, at least a part of the mounting portion being accommodated in the limit groove.

14. The suspension device according to claim 13, wherein the elastic vibration damping structure includes a bushing and a first skeleton ring, the first skeleton ring is fitted over the bushing, first stopper protrusions are formed on both end surfaces of the bushing in an axial direction of the bushing, second stopper protrusions are formed on both end surfaces of the first skeleton ring in the axial direction of the bushing, respectively, the two second stopper protrusions abut against the two first stopper protrusions in the axial direction of the bushing, respectively, and the stopper grooves are defined between the two second stopper protrusions.

15. The suspension device of claim 4 wherein each of said resilient vibration absorbing structures comprises first and second bullet-shaped vibration absorbing structures arranged in said first direction, said first and second bullet-shaped vibration absorbing structures being independently shaped, respectively.

16. A suspension device according to claim 3, wherein the connecting skeleton is a metal piece, the connecting skeleton being adapted for fixed connection with the axle.

17. The suspension device according to claim 1, characterized by further comprising: and the middle base plate is arranged between the guide arm and the vibration reduction support.

18. The suspension device according to any one of claims 1 to 17 further comprising: the second vibration reduction assembly is arranged on the suspension frame body and is suitable for being connected with the frame.

19. The suspension device according to claim 18 wherein the suspension frame body includes: the two guide arms are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, two guide arms are respectively connected to opposite ends of the connecting cross beam along the second direction, two first vibration reduction assemblies and two second vibration reduction assemblies are arranged at intervals along the second direction, opposite ends of the axle along the second direction are respectively connected with the two second vibration reduction assemblies, and each guide arm is provided with the first vibration reduction assemblies and the second vibration reduction assemblies which are distributed along the first direction;

The reinforcing beam and the connecting cross beam are distributed along the first direction, and two opposite ends of the reinforcing beam along the second direction are respectively connected with two guide arms.

20. The suspension assembly of claim 19, wherein the first vibration reduction assembly includes an air spring and a damper, the reinforcement beam is located on a side of the pilot arm in a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, a damper mount is provided on the reinforcement beam and at least a portion of the damper mount is located between the reinforcement beam and the pilot arm, the damper is fixedly connected to the damper mount, and a second fastener is threaded through the reinforcement beam, the damper mount, and the second vibration reduction assembly in the third direction.

21. A vehicle, characterized by comprising: suspension device according to any one of claims 1-20.